package com.yes.yjj.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class AppJdbcSelect {
    public static void main(String[] args) throws Exception{
        // 1. 加载驱动类
        Class.forName("com.mysql.jdbc.Driver");

        // 2. 获取连接
        String url = "jdbc:mysql://localhost:3306/test?useSSL=false";
        String username = "root";
        String password = "root";
        Connection connection = DriverManager.getConnection(url, username, password);

        // 3.创建陈述句对象
        Statement statement = connection.createStatement();
        // 4.执行查询
        String sql="SELECT id,username FROM `user` ORDER BY id";
        ResultSet set = statement.executeQuery(sql);

        // 5.获取数据
        int a1;
        String a2;
        while (set.next()){
            a1  = set.getInt(1);
            a2  = set.getString(2);
            System.out.println(a1+a2);

        }


    }
}
